friend parked model T 3 months ago and ran fine.
Went to start yesterday and no coils will buzz.
Worked switch several times. Cranked engine over by hand and with starter. With switch on Bat I measure 6 volts at top contact and middle contact of coils. I have removed and reseated coils. It appears I get no ground. Help.
I thought about timer but can't imagine none of the 4 coils buzzing as I turn the engine over by hand.
my best answer is that you have an open circut either from the key + or ground use a test light.
Or jump the coil pack + and see if it lights up.
blasted overnight gremlins
I had this before. It was in my case the spring on the roller inside the timer cover.
The spring was old and brittle, and the end broke off. Once I put on a new spring I have never had that problem again.
Hope this helps
How does, or does, the coil box ground? It is mounted to a wood firewall and I see no wire connecting it to ground.
Clean the inside of the timer and oil it. Moisture may form a little rust over the winter that prevents grounding the coils (there you have the ground for the coils, one at the time)
The coil box/coils are grounded through the timer when each coil is supposed to fire.
This diagram may help. There is no ground to the coil box, only to the coils through the timer when needed.
Have you tried cranking the engine? If the engine stopped between timer segments no coil will buzz. Of course after 3 months, the battery could be low. Try charging the battery and see if that helps. Otherwise it would be a loose connection, or bad switch. Not likely to be a wire or switch if it was working good 3 months ago, but corrosion can set in in a damp climate or with a little acid at the battery terminal connections.
The coils don't buzz on mine either, but it runs really great w/o them. That's 'cause I put in a Texas T distributor.
Robert, turn the key to Bat and get a short jumper wire to jump from a bare or no rust spot on the engine frame to the top row terminal of each coil. If the coil buzzes in each case, your wires to the timer or the timer is bad.
The check the wires from the timer to the coil box, move the jumper wire to each terminal on the timer cover and listen for a coil buzz.
Uh oh Jon, now you're gonna open up Pandoras Box (again) LOL
Thanks for the info. I have two T's and they both have distributors. This is my first at working on one with coils. Belongs to a friend and needs to be moved soon.
I agree Tim. It's a big can of worms.
Thanks all. It was the timer. Runs like a T should now.